<template>
  <div class="goodsinfo-container">
    <transition @before-enter="beforeEnter" @enter="enter" @after-enter="afterEnter">
      <div class="ball" v-show="ballFlag" ref="ball"></div>
    </transition>

    <div class="mui-card">
      <div class="mui-card-content">
        <div class="mui-card-content-inner">
          <swiper :lunbotuList="lunboList" :isfull="false"></swiper>
        </div>
      </div>
    </div>

    <div class="mui-card">
      <div class="mui-card-header">{{ goodsInfo.title }}</div>
      <div class="mui-card-content">
        <div class="mui-card-content-inner">
          <p class="price">
            市场价：
            <del>{{ goodsInfo.sell_price }}</del>&nbsp;&nbsp;销售价：
            <span class="new_price">{{ goodsInfo.market_price }}</span>
          </p>
          <p>
            购买数量：
            <numbox @getCount="getSelectCount" :max="goodsInfo.stock_quantity"></numbox>
          </p>
          <p>
            <mt-button type="primary" size="small">立即购买</mt-button>
            <mt-button type="danger" size="small" @click="addToShopCar">加入购物车</mt-button>
          </p>
        </div>
      </div>
    </div>

    <div class="mui-card">
      <div class="mui-card-header">商品参数</div>
      <div class="mui-card-content">
        <div class="mui-card-content-inner">
          <p>商品货号：{{ goodsInfo.goods_no }}</p>
          <p>库存情况：{{ goodsInfo.stock_quantity }}</p>
          <p>上架日期：{{ goodsInfo.add_time | dateFormat }}</p>
        </div>
      </div>
      <div class="mui-card-footer">
        <mt-button type="primary" size="large" plain @click="goDesc(id)">图文详情</mt-button>
        <mt-button type="danger" size="large" plain @click="goComment(id)">商品评论</mt-button>
      </div>
    </div>
  </div>
</template>
<script>
import swiper from "../subcomponents/swiper.vue";
import numbox from "../subcomponents/numberBox.vue";
export default {
  data() {
    return {
      id: this.$route.params.id,
      lunboList: [],
      goodsInfo: {},
      ballFlag: false,
      selectCount: 1
    };
  },
  created() {
    this.getlunbotu();
    this.getGoodsInfo();
  },
  methods: {
    getlunbotu() {
      this.$http.get("goodslunbo.json").then(result => {
        if (result.body.status === 0) {
          result.body.message.forEach(element => {
            element.img = element.src;
          });
          this.lunboList = result.body.message;
        }
      });
    },
    getGoodsInfo() {
      this.$http.get("goodsinfo.json").then(result => {
        if (result.body.status === 0) {
          this.goodsInfo = result.body.message[0];
        }
      });
    },
    goDesc(id) {
      this.$router.push({ name: "goodsdesc", params: { id } });
    },
    goComment(id) {
      this.$router.push({ name: "goodscomment", params: { id } });
    },
    addToShopCar() {
      this.ballFlag = !this.ballFlag;
      var goodsinfo = {
        id: this.id,
        count: this.selectCount,
        price: this.goodsInfo.market_price,
        selected: true
      }
      this.$store.commit("addToCar", goodsinfo)
    },
    beforeEnter(el) {
      el.style.transform = "translate(0,0)";
    },
    enter(el, done) {
      el.offsetWidth;
      const ballPosition = this.$refs.ball.getBoundingClientRect();
      const badgePosition = document
        .getElementById("badge")
        .getBoundingClientRect();

      var xDist = badgePosition.left - ballPosition.left;
      var yDist = badgePosition.top - ballPosition.top;
      console.log(xDist, yDist);

      el.style.transform = `translate(${xDist}px,${yDist}px)`;
      el.style.transition = "all 0.5s cubic-bezier(0,-0.51,.92,.5)";
      done();
    },
    afterEnter(el) {
      this.ballFlag = !this.ballFlag;
    },
    getSelectCount(count) {
      this.selectCount = count;
    }
  },
  components: {
    swiper,
    numbox
  }
};
</script>
<style lang="less" scoped>
.goodsinfo-container {
  background-color: #eee;
  overflow: hidden;
  .new_price {
    color: red;
    font-size: 16px;
    font-weight: bold;
  }

  .mui-card-footer {
    display: block;
    button {
      margin: 15px 0;
    }
  }

  .ball {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background-color: red;
    position: absolute;
    top: 390px;
    left: 152px;
    z-index: 99;
  }
}
</style>


